Weather & Climate in Monte Sereno, CA

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

Monte Sereno enjoys a temperate climate with an average annual temperature of 60°F (15°C). Winters average 49°F in January while summers reach 70°F in July. The area gets 323 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 22.2 inches (drier than the 38-inch national average). Air quality is rated Good with a median AQI of 48. The city sits at an elevation of 501 feet.

Temperature

49°F Jan (9°C) 70°F Jul (21°C)

Annual Average	59.6°F
	10% above US avg
January Average	49°F (9°C)
July Average	70°F (21°C)
Sunny Days	323 days/yr

Geography

Elevation	501 ft (153 m)
Area	1.6 sq mi (4.2 km²)
Population Density	2,122/sq mi
Coordinates	37.2404°N, 121.9882°W
Timezone	America/Los_Angeles
County	Santa Clara County County
Nearest Airport	Norman Y Mineta San Jose International (SJC) 9 miles away

Precipitation & Snow

Annual Rainfall 22.2"

42% below US avg

Snowfall 0.0"

Wettest Month (Jan) 4.65"

Driest Month (Jun) 0.08"

Air Quality

AQI Median	48.0
Rating	Good

Natural Hazard Risk

Overall Risk	Very High
Risk Score	99.8 / 100
Social Vulnerability	17.2 / 100
Community Resilience	72.6 / 100

Hazard Breakdown

Tornado	Relatively Low
Earthquake	Very High
Wildfire	Relatively Moderate
Flood	Very High
Hail	Relatively Low
Strong Wind	Very Low
Heat Wave	Relatively High
Winter Weather	Very Low
Lightning	Relatively Low
Drought	Relatively High
Cold Wave	No Rating
Landslide	Relatively High
Coastal Flood	Relatively High
Tsunami	Very Low
Volcano	Very Low
Avalanche	Very Low

Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

4,167 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.0.

Aug 24, 2014	The 2014 South Napa, California Earthquake	M6.0	112 km	11 km
Apr 18, 1990	5 km NNW of Aromas, California	M5.4	45 km	5 km
Oct 21, 2012	24 km NE of San Lucas, California	M5.3	145 km	9 km
Aug 12, 1998	10 km SW of Ridgemark, California	M5.1	72 km	9 km
Apr 18, 1990	4 km E of Interlaken, California	M5.1	41 km	7 km
Jan 16, 1993	9 km E of Gilroy, California	M4.9	53 km	7 km
May 14, 2002	5 km SSW of Gilroy, California	M4.9	46 km	7 km
Apr 23, 1995	22 km NNE of Soledad, California	M4.9	100 km	7 km
Apr 19, 1996	2 km E of Aromas, California	M4.9	52 km	5 km
Apr 18, 1990	4 km NNW of Aromas, California	M4.9	45 km	6 km
Sep 3, 2000	5 km WSW of Yountville, California	M4.9	132 km	9 km
May 21, 1996	8 km ESE of East Foothills, California	M4.7	27 km	8 km
Feb 4, 1991	33 km SE of Big Sur, California	M4.7	139 km	9 km
Apr 18, 1990	4 km N of Aromas, California	M4.7	46 km	4 km
Aug 11, 1993	14 km ESE of Alum Rock, California	M4.7	29 km	9 km
Aug 27, 2011	21 km NE of Soledad, California	M4.6	102 km	8 km
Aug 18, 1999	0 km S of Bolinas, California	M4.6	96 km	8 km
Mar 24, 1991	1 km NNE of Interlaken, California	M4.6	38 km	15 km
Sep 19, 2023	15 km SW of Westley, CA	M4.5	65 km	4 km
Jan 12, 2011	9 km SSE of San Juan Bautista, California	M4.5	68 km	8 km

Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

44 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 10 injuries.

Date	Rating	Distance	Path	Fatalities
May 5, 1998	EF2	15 km	0.6 mi	0
Mar 11, 1985	EF2	68 km	0.5 mi	0
Apr 27, 1953	EF2	98 km	0.1 mi	0
Jan 11, 1951	EF2	19 km	5.7 mi	0
Dec 14, 2024	EF1	22 km	0.3 mi	0
Jan 23, 2010	EF1	77 km	1.6 mi	0
Apr 14, 2006	EF1	98 km	0.5 mi	0
Mar 20, 2005	EF1	59 km	3.0 mi	0
Dec 20, 2001	EF1	35 km	0.5 mi	0
May 5, 1998	EF1	19 km	0.3 mi	0
Dec 6, 1992	EF1	72 km	1.0 mi	0
Dec 6, 1992	EF1	77 km	7.0 mi	0
Jan 14, 1980	EF1	28 km	0.3 mi	0
Apr 1, 1965	EF1	33 km	0.1 mi	0
Apr 1, 1958	EF1	53 km	0.2 mi	0
Jan 6, 2019	EF0	32 km	0.1 mi	0
Jan 6, 2019	EF0	32 km	0.5 mi	0
Jan 6, 2016	EF0	64 km	0.6 mi	0
Dec 22, 2012	EF0	43 km	1.1 mi	0
Apr 11, 2012	EF0	91 km	0.3 mi	0

Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Tsunami History

5 tsunamis recorded within 500 km. Highest wave on record: 4.5 m (15 ft).

Year	Location	Cause	Max Wave	Deaths	Distance
1868	N. CALIFORNIA	Eruption + Earthquake	4.5 m	30	52 km
1989	N. CALIFORNIA	Earthquake	1.0 m	62	25 km
1856	N. CALIFORNIA	Eruption + Earthquake	0.6 m	—	40 km
1906	N. CALIFORNIA	Eruption + Earthquake	0.1 m	—	68 km
1865	N. CALIFORNIA	Eruption + Earthquake	—	—	9 km

Source: NOAA/NCEI Historical Tsunami Database.

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: SCU LIGHTNING COMPLEX (405,787 acres, 2020).

Year	Name	Acres Burned	Distance
2020	SCU LIGHTNING COMPLEX	405,787	52 km
2020	CZU AUG LIGHTNING	85,894	23 km
2020	RIVER	51,582	92 km
2007	LICK	47,424	50 km
2006	CANYON	36,851	58 km
2003	ANNIE	17,383	66 km
2024	CORRAL	16,138	64 km
2009	CORRAL	12,006	59 km
1985	LEXINGTON	11,550	12 km
2009	LOCKHEED	8,287	27 km
2003	BIRD	7,727	67 km
2020	CARMEL	7,299	96 km
1984	SITE 300 3	6,911	64 km
2005	TESLA	6,638	60 km
2003	DEL PUERTO	6,441	56 km
2006	MIDWAY	6,243	64 km
2020	CREWS	5,802	53 km
2003	DEVIL	4,975	46 km
2003	JUMP	4,817	44 km
2016	LOMA	4,380	21 km

Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	49°F (9°C)	4.7 in	Coldest, Wettest
February	53°F (11°C)	3.7 in
March	55°F (13°C)	3.5 in
April	58°F (14°C)	1.7 in
May	62°F (17°C)	0.3 in
June	67°F (19°C)	0.1 in	Driest
July	70°F (21°C)	0.1 in	Warmest
August	70°F (21°C)	0.1 in
September	68°F (20°C)	0.3 in
October	63°F (17°C)	1.2 in
November	55°F (13°C)	3.3 in
December	50°F (10°C)	3.4 in

Monte Sereno has a seasonal temperature swing of 21°F / from 49°F in January to 70°F in July. Total annual precipitation is 22.1 inches, with January being the wettest month (4.7") and June the driest (0.1").

View full profile of Monte Sereno, CA →